Global Patent Index - EP 1528147 B1

EP 1528147 B1 20060111 - Dyeing assistant

Title (en)

Dyeing assistant

Title (de)

Färbereihilfsmittel

Title (fr)

Adjuvant de teinture

Publication

EP 1528147 B1 (DE)

Application

EP 03025096 A

Priority

EP 03025096 A

Abstract (en)

[origin: EP1528147A1] Composition suitable for use as dyeing auxiliary comprises (a) 5-20 wt.% optionally substituted o-, m- or p-nitro-benzenesulfonic acid (I) and (b) 1.8-10 wt.% 1-hydroxyalkane-1,1-diphosphonic acid (II), which may be in the form of alkali or ammonium salts. Composition suitable for use as dyeing auxiliary comprises (a) 5-20 wt.% optionally substituted o-, m- or p-nitro-benzenesulfonic acid (I) of formula (1) and (b) 1.8-10 wt.% 1-hydroxyalkane-1,1-diphosphonic acid (II) of formula (2): [Image] (XO)2P(=O)-C(OH)(R3)-P(=O)(OX)2 (2) X, Y : H, alkali or ammonium ion; R1NO2 in the o-, m- or p-position to the SO3Y group; R2H, 1-4 C alkyl or 1-4 C alkoxy; R31-4 C alkyl. An independent claim is also included for preparation of the composition by dissolving (I) and (II) in water.

IPC 8 full level

D06P 1/667 (2006.01); D06P 1/62 (2006.01)

CPC (source: EP)

D06P 1/625 (2013.01); D06P 1/667 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1528147 A1 20050504; EP 1528147 B1 20060111; AT 315678 T 20060215; DE 50302171 D1 20060406

DOCDB simple family (application)

EP 03025096 A 20031103; AT 03025096 T 20031103; DE 50302171 T 20031103